Rudolf Ruehl: Difference between revisions

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1966 MAR 28 - PHOTO LENS WITH A SHORT FOCAL LENGTH AND LARGER BACK INTERCEPTOR FOCAL LENGTH (7 / 5)

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	=== E. Leitz Photographic Patents by ~~Heinz Marquardt~~ ===		=== E. Leitz Photographic Patents by Rudolf Ruehl ===

	*1966 MAR 28 - PHOTO LENS WITH A SHORT FOCAL LENGTH AND LARGER BACK INTERCEPTOR FOCAL LENGTH (7 / 5)		*1966 MAR 28 - PHOTO LENS WITH A SHORT FOCAL LENGTH AND LARGER BACK INTERCEPTOR FOCAL LENGTH (7 / 5)